NumberOfDirectedGraphs[n]
returns the number of nonisomorphic directed graphs with vertices.
NumberOfDirectedGraphs[n,m]
returns the number of nonisomorphic directed graphs with vertices and
edges.


NumberOfDirectedGraphs
NumberOfDirectedGraphs[n]
returns the number of nonisomorphic directed graphs with vertices.
NumberOfDirectedGraphs[n,m]
returns the number of nonisomorphic directed graphs with vertices and
edges.
Details and Options
- To use NumberOfDirectedGraphs, you first need to load the Combinatorica Package using Needs["Combinatorica`"].
See Also
Tech Notes
Related Guides
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▪
- Graph Properties ▪
- Graphs & Networks ▪
- Graph Visualization ▪
- Computation on Graphs ▪
- Graph Construction & Representation ▪
- Graphs and Matrices ▪
- Graph Properties & Measurements ▪
- Graph Operations and Modifications ▪
- Statistical Analysis ▪
- Social Network Analysis ▪
- Graph Properties ▪
- Mathematical Data Formats ▪
- Discrete Mathematics
Text
Wolfram Research (2012), NumberOfDirectedGraphs, Wolfram Language function, https://reference.wolfram.com/language/Combinatorica/ref/NumberOfDirectedGraphs.html.
CMS
Wolfram Language. 2012. "NumberOfDirectedGraphs." Wolfram Language & System Documentation Center. Wolfram Research. https://reference.wolfram.com/language/Combinatorica/ref/NumberOfDirectedGraphs.html.
APA
Wolfram Language. (2012). NumberOfDirectedGraphs. Wolfram Language & System Documentation Center. Retrieved from https://reference.wolfram.com/language/Combinatorica/ref/NumberOfDirectedGraphs.html
BibTeX
@misc{reference.wolfram_2025_numberofdirectedgraphs, author="Wolfram Research", title="{NumberOfDirectedGraphs}", year="2012", howpublished="\url{https://reference.wolfram.com/language/Combinatorica/ref/NumberOfDirectedGraphs.html}", note=[Accessed: 09-August-2025]}
BibLaTeX
@online{reference.wolfram_2025_numberofdirectedgraphs, organization={Wolfram Research}, title={NumberOfDirectedGraphs}, year={2012}, url={https://reference.wolfram.com/language/Combinatorica/ref/NumberOfDirectedGraphs.html}, note=[Accessed: 09-August-2025]}